The major goal of this study is to determine the effect of this vitamin/mineral supplement on levels of vitamins, minerals, neurotransmitters, and biomarkers for nutritional deficiencies. The study design is a randomized, double-blind, placebo-controlled. Blood and urine measurements will be measured at the beginning of the study in children with autism and typical children. Then, the children with autism will be given the supplement or placebo for 12 weeks, and then their blood and urine will be re-measured.